I've spoken to the investigating officer regarding that bunker, was trying to get the owner to grant access to look around...no such luck .
Anyway back to the subject of the Nottingham 'war room' on Chalfont drive, ive been trying to gain access from the council to look around and they have been very helpfull in providing me with documents, put me in touch with land registry / developers etc...
I've been given this link which is a whole proposal for the nottingham war room
http://plan4.nottinghamcity.gov.uk/WAM/doc/Application%20Form-790186.pdf;jsessionid=4922570889F7D494A86AA6E8AFDB027A?ex